Im trying to resolve a simple system of 2 ecuations and 2 incognits, but I dont know why maple return the same that I put in the instruction as the answer, I will put my procedure here:

theta[2]:=20;
theta[3]:=theta[4]-30;

Maple returns:
                              ...

First of all my apologies for having improperly inserted graphic. As you can see in the document, Application 2, the graph is the result of having made an adjustment using SVD. I have tried to repeat the adjustment with Maple and this is what I get. Anything. Where is the problem. Any help?

Hi everyone, I'm a quite new user of maple 13 and i have a problem with the GererateMatrix command.

My porpouse is to convert a ODE problem into a matrix form so I'm using GenerateMatrix command...I pass the ODE equations as a list and then the variables as well. The results is correct and it returns exactly what i've expected but problems start here...

Once I generate the matrix  every list I've previously defined in the worksheet (as for example L:=[a=1,b=2,C=3...

Dears, How can i plot a parametric equations for an ellipse

x[i]=a*sin(t[i]),     y[i]=b*cos(t[i])      t[i] takes a numerical vaulues from - Pi to Pi.

i.e

i want to plot the values ,

(x[1], y[1]),

(x[2], y[2]),

.

.

(x[i], y[i])      where     i=1..100,

Dr. Amr

Dears. I want to evaluate the following expression numerically

G[i]=sum(Gama[i,k], k=1..100, k<>i),

where

Gama=((x[k]-x[i])*xdot[k]+(y[k]-y[i])*ydot[k])*dtheta[i]/((x[k]-x[i])^2+(y[k]-y[i])^2)^2

Dr. Amr

hi

do you know how i can define a matrix as local variables inside a  procedure?

for eg if we want to declare T as a 4*4 zero matrix and K as 6*6 zero matrix, is the followin ok:

local T::matrix(4,4,0),K(6,6,0);

.....

thanks

sarju

Hi,

I am trying to force the conversion of

to its cleaner looking

Anybody know how to do this in a straight-forward way? I've tried convert...

Hi,

When I solve this equation

Y(lambda):=_C1*sin(lambda*L);

solve(Y(lambda)=0,lambda);

Where _C1 and L are constants, I get 0.

But the solution of this equation which is easy is lambda=n*Pi/L where n=1,2,3,...

Why?

Thanks

I tried to build Pascal's triangle with powcrate as bellow described. It seem not worked and I don't know why (I am using Maple 12). Could you please help me. Thks a lot

Try to build Pascal's triangle with powcreate

Try with 2 different ways:

with u(n)  use subsop and zip to handle the list

with v(n)  use op and zip to handle the list

> restart;
> with(powseries);
 [compose, evalpow, inverse, multconst, multiply, negative, powadd, powcos, ...

This example from Mathematics. How it might translate to Maple?

t=RandomReal[{0,2Pi},20];

y=Sin[t]+.5Cos[t]+RandomReal[.1,20];

restart;gc()

a:=Matrix(1..5,1..5,(rand(1..1000))/1000)

b:=a*1000;

b[4,4] has the value 858.000000000000114   Why isn't this value 858. so that it matches the consistancy of the rest of the matrix??

Dear All,

I have a simple question: having a Matrix A, how to make a copy of this matrix called B, which modifications do not influence the values of Matrix A.

Simple example:

hey,

i am studying maths at uni and i have a test on maple tomorrow.

one of the revision questions is: "find a partial fraction expansion for p(x)/q(X) (given p and q) and extract the numerator of the 6th summand in the partial fraction expansion.

i defined p and q, and typed "convert(p/q,parfrac,x);" but that would not give me the result!

any help? please...

Hi,

I'm taking a class in DEs and Im trying to use maple to solve some of them.

the thing is I can't find a way to solve the following in maple: y" + y = 2xsin(x) .....

can somebody help me in that???

Thanks in advance.

Karim